- Foundation:
+ Bored piles D800mm÷D1,500mm; The depth of bored piles is from 40m to 45m.
+ Reinforced concrete piles 40x40 (cm) and 35x35 (cm);
Expressway construction:
- Total road length: L=29,264km x 4 strips.
- Soft soil improvement with wick drains and sand drains D40cm.
Drainage system:
- Reinforced concrete box culvert: Size 3,500mmx3,500mm, length: 540m; Size 3,000mmx3,000mm length: 48m; Dimensions 3,500mmx2,000mm, length: 480m.
- Reinforced concrete round culvert: Diameter D=1,500mm length: 1,100m; Diameter D=2,000mm length: 850m.
Application technology: applying the most advanced technologies to meet the requirement of the most modern expressway in Vietnam.